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Definition of ether noun from the Oxford Advanced Learner's Dictionary

ether

noun
 
/ˈiːθə(r)/
 
/ˈiːθər/
[uncountable]
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  1. a clear liquid made from alcohol, used in industry as a solvent and, in the past, in medicine to make people unconscious before an operation
  2. the ether
    (old use or literary) the upper part of the sky
    • Her words disappeared into the ether.
  3. the ether
    the air, when it is thought of as the place in which radio or electronic communication takes place
    • The messages simply vanish into the ether after 24 hours.
  4. Word Originlate Middle English: from Old French, or via Latin from Greek aithēr ‘upper air’, from the base of aithein ‘burn, shine’. Originally the word denoted a substance believed to occupy space beyond the sphere of the moon. Sense (1) arose in the mid 18th cent.
See ether in the Oxford Advanced American Dictionary
given
adjective
 
 
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